The use of irony, only not. Used by some to get away with telling jokes many would not find amusing. Employed mainly by hipsters and the middle-classes.
James: 'Oh no! A black person! Please don't mug me!'
Jessica: 'Hilarious!'
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.